The way to do it IMHO is the 2 catch can setup you have linked in your post. That is the way I have mine done and I believe it is the best way. I think you may be misunderstanding what needs to be accomplished with a properly functioning pcv system like this. You need to keep the hose hooked to the intake because that is what is responsible for pulling fresh air into the crankcase at idle/vacuum conditions. Without this hooked to the intake you can have alot of contaminant gases getting into your oil, especially upon warmup as there are alot of gases present until the motor gets up to temperature. That is why there are two vents on the v/c. One for pulling air out and one for letting fresh air in.
When the intake manifold sees boost though, it checks off the pressure at the checkvalve and/or pcv valve so that the crankcase does not become pressurized while the other vent going to the intake/breather on the other side of the v/c will have some air coming out (the opposite direction as under vacuum conditions) from blowby under boost. By having two cans you can collect the crap coming out of both sides of the crankcase.
Make sense? You would be surprised at how much you collect on the intake manifold side. I'm glad I am now catching that stuff instead of introducing it back into the engine, crankcase, oil, etc.
Sorry for the long post if you already knew all of this. I just wanted to give you the reasons why I believe two cans are better than one.